Rear Bumper brackets

Well my brackets for my rear bumper rusted off and now my bumper just hangs there. What should i do?

Option 1:

       Cut some rust out and weld a thick sheet on and drill the bracket back in?

Option 2:

       Drill some body fasterns into the bumper and into the chassis.

Option 3:

       Leave it.

pics of how bad it is? you could always zip tie LOL